Order of battle question

[Principe]

I think Experienced soldiers in the back give the younger ones hope. They know that if they fail, they will be able to retreat, allowing them to fight without the fear of being massacred. Younger troops also will be the first to be killed in ambushes, if the front of the column is attacked. However, I think Experienced veterans should be in the battleline and not waiting by the side. They give much more morale close to the troops than sitting and waiting to flank or till the battle turns critical.

[The Stranger]

i usually keep some veteran (or elite units) in the back to reinforce the line or counterattack where needed.